CN103901510B - Based on the fast zoom distance device of biliquid lens - Google Patents
Based on the fast zoom distance device of biliquid lens Download PDFInfo
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- CN103901510B CN103901510B CN201410144158.6A CN201410144158A CN103901510B CN 103901510 B CN103901510 B CN 103901510B CN 201410144158 A CN201410144158 A CN 201410144158A CN 103901510 B CN103901510 B CN 103901510B
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Abstract
The present invention relates to the fast zoom distance device based on biliquid lens, comprising: lens barrel, delustring cover, manual liquid lens electric control gear.Wherein, lens barrel is made up of two pieces of liquid lenss and some fixed lenss; Delustring cover is fixed on lens barrel, and tail end installs image device; Manual liquid lens electric control gear realizes the Electronic control of manual lens.Putting on the voltage of electrically powered liquid lens and the angle of manual liquid lens whirligig by changing, the focal length of two pieces of liquid lenss can be changed, thus make whole device complete varifocal function.
Description
Technical field
The present invention relates to a kind of fast zoom based on biliquid lens apart from device.
Background technology
Variable focal length optical system plays key player in imaging system miscellaneous, the change of focal length can the movement of scioptics, the change of refractive index or lens shape change realize.In recent years, variable focal length optical system because of its target detection rapidly, continuously and flexibly, IMC ability easily, obtain in Aero-Space and the field imaging system such as military and apply more and more widely.Current change focus technique can divide into traditional zoom and new zoom according to lens movement mode.Traditional zoom is made up of the lens subassembly that several groups of focal lengths are fixing usually apart from optical system, becoming focussing process is reach the burnt object of modified tone by the relative position of the mechanical hook-up change universal focus lens groups such as space cam, this kind of zoom system, pancreatic system all proposes harsh accuracy requirement to mechanical positioner and moving component, make traditional zoom system architecture complicated, and cost is higher, be difficult to realize Miniaturization Design simultaneously.Liquid lens is a kind of novel optical element, and it utilizes certain control method to change refractive index or the shape of camera lens, and have the advantages such as fast response time, low in energy consumption, noiseless, carrying out adjusting focal length with this, realize zoom function, is a kind of brand-new zoom mode.Zoom system, pancreatic system based on liquid lens does not need to introduce mechanical moving element, can significantly simplify existing zoom system, pancreatic system, the aspect performances such as General Promotion steadiness, shock resistance, response speed and power consumption.
Summary of the invention
The object of the invention is to solve existing apparatus complex structure, being difficult to realize the problem of Miniaturization Design, propose a kind of microminiature fast zoom based on biliquid lens apart from device.
The object of the invention is to be achieved through the following technical solutions.
Based on a fast zoom distance device for biliquid lens, comprising: lens barrel, delustring cover, manual liquid lens electric control gear.Its annexation is: delustring cover is fixed on lens barrel with jackscrew, and lens barrel rear end manual liquid rotation of lens device, in order to fixed lens barrel and motor, is connected with motor with power transmission toothed belt drive by flange by manual liquid camera lens electric control gear medium-height trestle.
Lens barrel comprises front end fixed lens group, electrically powered liquid lens, rear end fixed lens group and manual liquid lens.Its annexation is: front end fixed lens group, electrically powered liquid lens, rear end fixed lens group, manual liquid lens connect successively, and its line of centres is by imaging sensor center, and overlap with systematic optical axis, system is coaxial mechanical-optical setup.
Delustring cover, is fixedly mounted on lens barrel rear end, for delustring and installation image device;
Manual liquid lens electric control gear comprises support, stepper motor, flange and power transmission toothed belt drive.Its annexation is: stepper motor is fixed on support, and flange is fixed on lens barrel tail end, and two toothed belt wheels of power transmission toothed belt drive are individually fixed on flange and stepping motor rotating shaft, are connected by cingulum.
Described lens barrel is the fast zoom distance system based on biliquid lens, wherein light beam incides fixed lens group surface, front end by front end fixed lens group, transmitted ray is after electrically powered liquid lens position reflects, Geometrical Optics is to the rear end fixed lens group in system, incident light wire harness is after the refraction of fixed lens group place, rear end, Geometrical Optics is to the manual liquid lens in system, and incident light wire harness reaches imaging sensor position.The surface curvature radius of electrically powered liquid lens and manual liquid lens can change, and its focal length is variable, thus makes system focal length variations, realizes zoom.
The described mask set that disappears, in the banded hole of side opening one, passes for cingulum.Delustring cover afterbody is processed into standard M12 × 0.5 interface, for installing cmos imaging chip.
Described manual liquid lens electric control gear for realizing Electronic control on manual liquid lens, thus makes whole device program controlled, and automatically controlled step angle is 0.45 °.
Beneficial effect
Fast zoom based on biliquid lens of the present invention is apart from device, and chief component is the lens barrel be made up of two pieces of liquid lenss and one group of fixed lens, and the relative position in lens barrel between each lens, without the need to changing, simplifies apparatus structure, achieves microminaturization.The step angle of manual liquid lens electric control gear meets the requirement of continuous vari-focus.
Accompanying drawing explanation
Fig. 1 is the schematic three dimensional views of the fast zoom distance device that the present invention is based on biliquid lens;
Fig. 2 be lens barrel face structural drawing;
Fig. 3 fixed lens group and liquid lens combine and realize element not ejector half varifocal optical system;
Fig. 4 is the schematic three dimensional views of delustring cover;
Fig. 5 is the schematic three dimensional views of manual liquid lens electric control gear;
Fig. 6 is the assembling schematic diagram of the fast zoom distance device that the present invention is based on biliquid lens.
Number in the figure
1-lens barrel, 2-delustring cover, 3-manual liquid lens electric control gear, 4-front end fixed lens group, 5-electrically powered liquid lens, 6-rear end fixed lens group, 7-manual liquid lens, 8-imaging sensor, 9-flange, 10-support, 11-stepper motor, 12-cingulum conveyer.
Embodiment
Below in conjunction with drawings and Examples, the present invention is elaborated.
Embodiment
As shown in Figure 1, the fast zoom based on biliquid lens of the present embodiment comprises lens barrel 1, delustring cover 2, manual liquid lens electric control gear 3 apart from device.
Wherein, the lens barrel 1 of the present embodiment, as shown in Figure 2, is made up of one piece of electrically powered liquid lens, one piece of manual liquid lens and polylith fixed lens.
The fast zoom based on biliquid lens of the described lens barrel that the present invention realizes is apart from system, wherein front end fixed lens group 4, electrically powered liquid lens 5, rear end fixed lens group 6, manual liquid lens 7, imaging sensor 8 image plane center line overlap with systematic optical axis, and system is coaxial mechanical-optical setup.Light beam is incident by front end fixed lens group 4, after sequentially passing through electrically powered liquid lens 5, rear end fixed lens group 6 and manual liquid lens 7, focuses on imaging sensor 8.The surface curvature radius of electrically powered liquid lens 5 and manual liquid lens 7 can change, and its focal length is variable.What Fig. 3 described is the system schema adopting deformable mirror and liquid lens to realize zoom, if figure light is to fixed lens group 1 surface, transmitted ray is after liquid lens position reflects, Geometrical Optics is to the rear end fixed lens group 6 in system, incident light wire harness is after the refraction of rear end fixed lens group 6 place, Geometrical Optics is to the manual liquid lens 7 in system, and incident light wire harness reaches imaging sensor 8 position.Describe 3 positions in Fig. 2, position 1 is short Jiao, and position 2 is middle Jiao, and position 3 is focal length, and when the element focal length of electrically powered liquid lens 5 and manual liquid lens 7 changes, system focal length variations, realizes zoom.
Delustring cover 2, as shown in Figure 4.This part jackscrew is fixedly installed in lens barrel 1 tail end.The banded hole of 100 °, delustring cover side opening one central angle, width 6mm, at utmost realizing delustering functions by cingulum.Afterbody is processed into standard M12*0.5 interface, for installing cmos imaging sensor 8.
Manual liquid lens electric control gear 3, as shown in Figure 5, by a flange 9, support 10, stepper motor 11, forms with one group of power transmission toothed belt drive 12.
As shown in Figure 6, flange 9 is nested on the whirligig of lens barrel 1 afterbody manual liquid lens assembling mode; Support 10 is for supporting and fixed lens barrel 1; Stepper motor 11 is fixing over the mount 10; On the axle that two toothed belt wheels of cingulum wheelwork 4 are separately fixed at stepper motor 11 and flange 9, by cingulum connection for transmission; Delustring cover 2 jackscrew is fixed on lens barrel 1, and cingulum is passed by the hollow part of delustring cover 2 side.Entirety is the device shown in pie graph 1 after having assembled.
The Main Function of manual liquid lens electric control gear 3 in fact converts manual liquid lens to electrically powered liquid lens, thus make device entirety realize programmed control.Manual liquid focal length of lens adjustable extent is :-40mm-infinity-40mm, the maximum angle rotatable of rotation adjustment device 120 °.The stepper motor, the ratio of gear that adopt step angle 1.8 ° are the power transmission toothed belt drive of 4, then the automatically controlled step angle of manual liquid camera lens is 0.45 °, stepping accuracy ± 5%.
Claims (4)
1., based on a fast zoom distance device for biliquid lens, it is characterized in that, comprising: lens barrel, delustring cover, manual liquid lens electric control gear; Its annexation is: delustring cover is fixed on lens barrel with jackscrew, and lens barrel rear end manual liquid rotation of lens device, in order to fixed lens barrel and motor, is connected with motor with power transmission toothed belt drive by flange by manual liquid camera lens electric control gear medium-height trestle; Described lens barrel is the fast zoom distance system based on biliquid lens, wherein light beam incides fixed lens group surface, front end by front end fixed lens group, transmitted ray is after electrically powered liquid lens position reflects, Geometrical Optics is to the rear end fixed lens group in system, incident light wire harness is after the refraction of fixed lens group place, rear end, Geometrical Optics is to the manual liquid lens in system, and incident light wire harness reaches imaging sensor position; The surface curvature radius of electrically powered liquid lens and manual liquid lens can change, and its focal length is variable, thus makes system focal length variations, realizes zoom.
2., as claimed in claim 1 based on the fast zoom distance device of biliquid lens, it is characterized in that, lens barrel comprises front end fixed lens group, electrically powered liquid lens, rear end fixed lens group and manual liquid lens; Its annexation is: front end fixed lens group, electrically powered liquid lens, rear end fixed lens group, manual liquid lens connect successively, and its line of centres is by imaging sensor center, and overlap with systematic optical axis, system is coaxial mechanical-optical setup.
3. as claimed in claim 1 based on the fast zoom distance device of biliquid lens, it is characterized in that, manual liquid lens electric control gear comprises support, stepper motor, flange and power transmission toothed belt drive, its annexation is: stepper motor is fixed on support, flange is fixed on lens barrel tail end, two toothed belt wheels of power transmission toothed belt drive are individually fixed on flange and stepping motor rotating shaft, are connected by cingulum.
4., as claimed in claim 1 based on the fast zoom distance device of biliquid lens, it is characterized in that, in the banded hole of side opening one of delustring cover, pass for cingulum; Delustring cover afterbody is processed into standard M12 × 0.5 interface, for installing cmos imaging sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144158.6A CN103901510B (en) | 2014-04-11 | 2014-04-11 | Based on the fast zoom distance device of biliquid lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144158.6A CN103901510B (en) | 2014-04-11 | 2014-04-11 | Based on the fast zoom distance device of biliquid lens |
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| Publication Number | Publication Date |
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| CN103901510A CN103901510A (en) | 2014-07-02 |
| CN103901510B true CN103901510B (en) | 2016-01-20 |
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| CN201410144158.6A Expired - Fee Related CN103901510B (en) | 2014-04-11 | 2014-04-11 | Based on the fast zoom distance device of biliquid lens |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105607246B (en) * | 2016-02-26 | 2018-10-09 | 北京理工大学 | A kind of focus liquid system based on micromotor |
| CN108803016B (en) * | 2018-06-11 | 2022-08-30 | 北京理工大学 | Zoom pit imaging method and system based on bifocal lens and liquid lens |
| EP3903130B1 (en) * | 2018-12-28 | 2023-06-07 | Nextlens Switzerland AG | An optical system comprising a lens with an adjustable focal length |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1882856A (en) * | 2003-10-23 | 2006-12-20 | 安德里斯·奥布雷斯基 | Imaging optics with adjustable optical power and method of adjusting an optical power of an optics |
| CN1963592A (en) * | 2006-11-29 | 2007-05-16 | 上海理工大学 | Optical design method for finite distance imaging by battery of lens of zoom taking pictures without mechanical movement |
| CN102388325A (en) * | 2009-04-10 | 2012-03-21 | 黑眼睛光学有限公司 | Variable power optical system |
| CN102436018A (en) * | 2006-12-15 | 2012-05-02 | 手持产品公司 | Apparatus and method comprising deformable lens element |
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2014
- 2014-04-11 CN CN201410144158.6A patent/CN103901510B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1882856A (en) * | 2003-10-23 | 2006-12-20 | 安德里斯·奥布雷斯基 | Imaging optics with adjustable optical power and method of adjusting an optical power of an optics |
| CN1963592A (en) * | 2006-11-29 | 2007-05-16 | 上海理工大学 | Optical design method for finite distance imaging by battery of lens of zoom taking pictures without mechanical movement |
| CN102436018A (en) * | 2006-12-15 | 2012-05-02 | 手持产品公司 | Apparatus and method comprising deformable lens element |
| CN102388325A (en) * | 2009-04-10 | 2012-03-21 | 黑眼睛光学有限公司 | Variable power optical system |
Non-Patent Citations (1)
| Title |
|---|
| 双液体变焦透镜像差的测量研究;徐元韬 等;《光学仪器》;20130831;第35卷(第4期);38-42 * |
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| CN103901510A (en) | 2014-07-02 |
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